Fix typo

osu.Framework/Graphics/Containers/CompositeDrawable.cs

@@ -35,7 +35,7 @@ namespace osu.Framework.Graphics.Containers
 {
  /// <summary>
  /// A drawable consisting of a composite of child drawables which are
- /// manages by the composite object itself. Transformations applied to
+ /// managed by the composite object itself. Transformations applied to
  /// a <see cref="CompositeDrawable"/> are also applied to its children.
  /// Additionally, <see cref="CompositeDrawable"/>s support various effects, such as masking, edge effect,
  /// padding, and automatic sizing depending on their children.